<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>indexDB-演练</title>
  <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
  <style>
    .btn-danger {
      margin-right: 10px;
    }
  </style>

</head>

<body>

<div id="app"></div>
  

</body>

</html>


